My neighbours' forsythia is almost as tall as my bedroom windowsill, but it does give us some privacy from one another! I think when something has become so popular that it is seen so commonly in so many gardens we can become over-whelmed by it's appearance and start to hate it!
Another plant that has fallen out of popularity or fashion is the pampas grass, for bizaar and ridiculous reasons, ranging from "chav-ness" to apparently being representative of the home-owners association with a rather sleezy club pastime!!!
What a load of rot!!! I have just bought myself a lovely pink fluffy pampass --- can you get more chavvy than that??? And wall-flowers were considered, not so long ago, as a really "old-lady-ish" plant, and quite naff! I have planted a whole gaggle of these in red and white either side of our school chapel doorway, and they look really green and lush. When the flowers come, I hope everyone will feel uplifted rather than "old-ladyish"!!!!